GENERAL KNOWLEDGE

Detailed explanation-1: -The quill pen was replaced by the metal nibs by the 19th century. Throughout the early 19th century, the usage of the quill pen faded and the quality of metal nibs increased. Ballpoint pens also made their mark in the late 19th century, but their patents were not exploited commercially.

Detailed explanation-2: -An American, John J Loud, received the first patent for a ballpoint pen back in 1888. Loud, a lawyer and occasional inventor, wanted an ink pen which would be able to write on rougher materials such as wood and leather as well as paper.

Detailed explanation-3: -Petrache Poenaru is credited for the invention of pen, which is known to be mightier than the sword. He was the first to develop the fountain pen in 1827. Petrache was a Romanian engineer, inventor, and mathematician.